CN201024134Y

CN201024134Y - Vacuum glass with vacuum detection device

Info

Publication number: CN201024134Y
Application number: CNU2007200687813U
Authority: CN
Inventors: 邵尚伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-10
Filing date: 2007-04-10
Publication date: 2008-02-20
Anticipated expiration: 2017-04-10

Abstract

A vacuum glass provided with a vacuum detection device, comprising two layers of plate glass 1 sealed by sealants 2 all around. The air between the two layers of the plate glass 1 is extracted and a vacuum cavity 3 is formed. A plurality of little supporting pads 4 and at least two mutual insulating metal electrodes 5 are positioned in the cavity. The leading feet of the metal electrodes 5 are exposed or protrude out of the cavity 3 through the sealants 2. The metal electrodes 5 are positioned in the sealants 2. Meanwhile, a melting and sealing transition layer 6 that can melt the metal electrodes 5 and the sealants 2 together into a whole is positioned between the metal electrodes 5 and the sealants 2 so as to ensure the sealing property between the electrodes and the sealants. The utility model can decide whether the vacuum pressure of the cavity is qualified by the occurrence of glow of the vacuum glass under the condition of pressure testing. Consequently, whether the quality meets the standard of requirements can be justified.

Description

The vacuum glass of band vacuum checking device

Technical field

The utility model relates to a kind of vacuum glass that is mainly used in building and household electrical appliances.

Background technology

Vacuum glass be by around two interlayers of sealing every the sheet glass of about 0.1-0.2mm, take out air formation in the interlayer, generally between two blocks of glass, establish some little supporting pads to gain in strength.The general conduit of bleeding that adopts of production technique, punching on the plane of sheet glass, the welding conduit of bleeding then, the rear enclosed of the bleeding conduit of bleeding also needs add tin hat at the catheter tip of bleeding, in case conduit damages gas leakage then.Because the vacuum interlayer of vacuum glass is relatively poor to the conduction of hot harmony, so vacuum glass has good heat insulation, sound insulation effect, can be widely used in aspects such as energy saving building.Because the vacuum tightness in the vacuum glass interlayer is conclusive for heat insulation, sound insulation effect, and in producing and influence the factor of layer vacuum between preservation period a lot, therefore the measurement to layer vacuum is an important step extremely of production assurance with controlling.At present, after the sealing, the vacuum tightness of interlayer lacks measuring method around vacuum glass, and as not measuring this Critical to quality effectively, the quality control to vacuum glass has then just become an empty verbiage so.

Summary of the invention

The purpose of this utility model is to propose the vacuum glass with vacuum checking device, and whether the vacuum tightness that this device of mat can predict between the sheet glass interlayer at any time conforms to quality requirements, to overcome the deficiencies in the prior art.

A kind of vacuum glass of the present utility model with vacuum checking device, form by two layers of sheet glass 1 by sealing ply all around 2 sealings, 1 vacuumizing of two layers of sheet glass forms vacuum cavity 3, be provided with some little supporting pads 4 in the cavity, at least be provided with the metal electrode 5 of two mutually insulateds in the cavity, the leading foot of described electrode 5 exposes or stretches out in outside the cavity 3.

Described metal electrode 5 is arranged in the described sealing ply 2, and its leading foot exposes by described sealing ply 2 or stretches out in outside the cavity 3.In order to ensure the stopping property between electrode and the sealing ply, be provided with the sealing by fusing transition layer 6 that can make metal electrode 5 and described sealing ply 2 be easy to fuse into one between described metal electrode 5 and the described sealing ply 2 simultaneously.

Advantage of the present utility model is: formed a device that is similar to glow tube owing to add top electrode in vacuum cavity, when as between two electrodes, add the test voltage of regulation, if the intravital vacuum pressure in chamber during greater than prescribed value, then aura can occur in the chamber.Therefore according to aura whether occurs under the condition of test voltage, just whether the intravital vacuum pressure in the chamber of this vacuum glass of decidable is qualified, thereby judges the whether conformance with standard requirement of its quality.Because the utility model adopts the anury vacuum technology to produce; not be used on the sheet glass punching, the welding conduit of bleeding; also need not the sealing-in bleeding point after bleeding and take to protect the measure of bleeding point, therefore also do not have irregular thrust again, the problem that does not also exist extraction pipe to damage at glass surface.

Description of drawings

Now the utility model is described in further detail in conjunction with an embodiment and accompanying drawing thereof.

Fig. 1 is a vacuum glass synoptic diagram of the present utility model;

Fig. 2 is the enlarged view of the electrode part among Fig. 1.

Among the figure: 1 upper and lower layer of glass, 2 sealing plys, 3 vacuum cavities, 4 supporting pads, 5 electrodes, 6 electrode sealing by fusing transition layers, 7 sealing ply sealing by fusing transition layers.

Embodiment

An embodiment of the present utility model is shown in Fig. 1-2, two layers of sheet glass 1 spacing are 0.1-0.2mm, seal by sealing ply 2 around two layers of glass, and vacuumizing forms vacuum cavity 3 in vacuum oven, the little supporting pad 4 of uniform some its intensity of reinforcement is provided with two metal electrodes 5 in the cavity in the cavity.Imbed described electrode 5 in processing during sealing ply 2, simpler than the technology of on sheet glass 1, burying electrode underground, so present embodiment will electrode 5 be embedded in the sealing ply 2, its leading foot exposes by sealing ply 2 or stretches out in outside the cavity 3.Between electrode 5 and sealing layer 2, be provided with sealing by fusing transition layer 6.Transition layer 6 is general to adopt a kind of being similar to be used for valve tube metal and glass-sealed glass that cuts down, and can guarantee sealing strength and sealing property between the metal electrode 5 and sealing layer 2 when the high temperature sealing by fusing like this.

Owing to adopt vacuum oven anury vacuum technology, can form in the cavity 3≤10 ^-1The vacuum pressure of Pa.Because during exhaust, sheet glass does not have pressure difference inside and outside the chamber in vacuum oven, therefore the quantity of required supporting pad 4 is lacked 1/4-1/2 than existing conduit vacuum technology between layer glass.In the present embodiment, the distance between two supporting pads can 〉=25mm.

In order to make the good vacuum tightness of energy long term maintenance in the cavity 3, needing has good sealing strength and sealing property between sheet glass and the sealing layer all around 2.Between sheet glass 1 and sealing layer 2, be provided with sealing by fusing transition layer 7 for this reason.The sealing by fusing transition layer 7 general low melting glasses that are added with fusing assistant that adopt.

Claims

1. vacuum glass with vacuum checking device, form by two layers of sheet glass (1) that seals by sealing ply (2) all around, vacuumizing forms vacuum cavity (3) between two layers of sheet glass (1), be provided with some little supporting pads (4) in the cavity, it is characterized in that being provided with at least in the cavity metal electrode (5) of two mutually insulateds, the leading foot of described electrode (5) exposes or stretches out in outside the cavity (3).

2. the vacuum glass of band vacuum checking device according to claim 1 is characterized in that described metal electrode (5) is arranged in the described sealing ply (2), and its leading foot exposes by described sealing ply (2) or stretches out in outside the cavity (3).

3. the vacuum glass of band vacuum checking device according to claim 2, it is characterized in that described metal electrode (5) and described sealing ply (2) between be provided with the sealing by fusing transition layer (6) that can make metal electrode (5) and described sealing ply (2) be easy to fuse into one.

4. according to the vacuum glass of claim 1,2 or 3 described band vacuum checking devices, it is characterized in that between sheet glass (1) and two layers of glass sealing ply (2) all around, being provided with the sealing by fusing transition layer (7) that can make sheet glass (1) and described sealing ply (2) be easy to fuse into one.

5. the vacuum glass of band vacuum checking device according to claim 1 is characterized in that vacuum pressure≤10 in the cavity (3) between described two layers of sheet glass (1) ^-1Pa.

6. the vacuum glass of band vacuum checking device according to claim 1 is characterized in that the distance 〉=25mm between two supporting pads (4).